Compress an image to 100 KB
Rejected for being over 100 KB? This page is preset for exactly that limit: add your photo (JPG, PNG or WebP) and it automatically finds the highest quality that fits under 100 KB — the typical requirement for profile pictures, web forms and email attachments that reject images over 100 KB. Everything runs in your browser: photos of your ID or signature are never uploaded anywhere.
How to use the Compress image to 100 KB tool
Select or drag your image — the target is already set to 100 KB.
Click “Compress image”.
Download a photo under 100 KB, ready for the form.
Your files stay on your device
This tool runs entirely in your browser using JavaScript and WebAssembly. There is no upload step and no server processing — open your network panel and check: zero document data is transmitted. It even keeps working offline once the page has loaded.
Frequently asked questions
Why do forms demand photos under 100 KB?
Portals enforce small image sizes to keep uploads fast and storage predictable — profile pictures, web forms and email attachments that reject images over 100 KB are the classic cases. The check is automatic: even slightly over and the form rejects it, so compressing to just under 100 KB is the reliable fix.
Will my photo still be clear at 100 KB?
For the intended use (an ID-style photo or signature displayed small), yes. The tool lowers quality first and touches dimensions only if needed, so you always get the sharpest image that fits under 100 KB.
Is my photo uploaded to compress it?
No. Compression runs entirely in your browser on your device. These uploads are usually ID photos and signatures — exactly what you don’t want on a stranger’s server, which is why PDFAgent never receives them.
Is it safe to use this tool with confidential documents?
Yes — and verifiably so. PDFAgent has no upload step: your file is processed by JavaScript running in your own browser and never leaves your device. You can open your browser’s network panel (or even go offline after loading the page) and confirm that no document data is transmitted.
Related tools
Popular size limits
Preset pages for the limits upload forms ask for most: